Loom



A. E. STROUD.

LOOM.

APPLICATION FILED JULY 24,1917. 1,357,127. Patented Oct. 26,1920.

5 SHEETS-SHEET 1- 89 gin! I] M 45% m ZJMV A. E. STROUD.

LOOM.

APPLICATION FILED JULY 24, 9.17.

Pargnted Oct. 26, 1920.

5 SHEETS-SHEET 2.

A. E. STROUD.

LOOM.

APPLICATION FILED JULY 24.1917.

1,357,127. Patented Oct. 26, 1920.

5 SHEETS-SHEET 3.

'IIIIIIIlllltqfqllllllllll A. E. STROUD.

LOOM.

7 APPLICATION FILED JULY 24,1917- 1,357,127. Patented Oct. 26,1920.

1 5 SHEETS$HEET 4.

A. E. STROUD.

LOOM.

APPLICATION FILED JULY 24,1917.

Patented Oct. 26, 1920.

5 SHEETSSHEET 5- UNITED STATES PATENT OFFICE.

ARTHUR EDWARD srnoun, or LONG EATON, ENGLAND.

Applicationfiled J uly 24,

' which the following is a specification.

This invention relates to improvementsin vertical looms provided with a number of shuttles working in parallel planes which are at right angles to the width of the loom and used for the production of tapes, ribbons, and similar articles, and has reference to looms in which the shuttles, together with their carrying and actuating mechanisms move vertically with the reed.

The present invention has for its object improvements in the construction and ar. rangenient of the means for and in the method of carrying and actuating the shut tles, improvements in the construction of the reed, improvements in and relating to the thread tension and let-off mechanisms, improvements in the work take-up mechanisms, and improvements in the general construction and arrangement of the loom.

In the accompanying drawings Figure 1 is the end elevation of a loom constructed according to this invention.

Fig. 2 is a plan of the driving mechanism. Fig. 3 is a transverse section of the loom.

' Fig. 4 is a plan of the-warp bobbin and the connected thread let-offand tension mechanisms.

Fig. 5 is a transverse section of the central frame showing a shuttle and associated parts.

Fig. 6 is a plan of the same.

Fig. 7 is a plan of the improved reed.

Fig. 8 is a transverse section of the same.

Fig. 9' is a side elevation of the shuttle.

Fig, 10 is a transverse section of the same.

Fig. 11 is a longitudinal section of the 4 central frame, parts of the machine being broken away. a V

Fig. 12 is a bottom plan view of, the parts shown in Fig. 11. a

The central frame of the improved loom comprises a front bar 1, aback bar 2, and end connecting brackets 3 upon and to which the bars 1 and 2 are attached. The brackets 3 are attached to rods 4 which are fitted to slide in guides 5. carried by the standard 6 and are actuated through'connecting rods 7 by crank pins 8carried by eccentric toothed gear wheels 9 which are driven by similarly Specification of Letters Patent. '7 Patented O t 26 v192,0

1917. Serial no. 182,532.

shaped wheels 10 on the driving shaft 11, thesald wheels being so arranged that the brackets 3 and the parts connected thereto are moving at their fastest speed when the brackets are approaching and leaving their highest position and the reed is beating up the wefts. The central frame is also pro vided with springs 12 by which the weight of the vertically moving parts is wholly or partially balanced.

Attached to the upper surfaces of the bars 1 and 2 there are carrying and bearing plates 13, Fig. 5, .for the shuttles 14, and such plates are preferably of multiple ply wood by which lightness and an approximately true surface is obtained. The shuttles 14, Figs. 9 and 10, which are preferably made of aluminium, carry a weft spool 15 which is free to rotate upon a horizontal axle 16 and is held from accidental rotation by a brake device 17. The thread 18 passes fromthe spool 15 under a fixed wire 19't0 an eye 20,

and then to the spring 21 by which the slack of the thread is taken up, and the thread leaves the shuttle by the centraleye 22. The

sides of the base of the shuttle are parallel and the shuttles slide upon the plates 13 between strips 23, Fig. 6, attached to such plates, the said strips forming spacing pieces arms 27 which are pivotallyv connected to bow levers 28 on the rocking shafts 29 which are carried in bearings 30 from the bars 1 and 2. At both ends of the shafts 29 there are actuating levers 31 the axles 32 of which engage with slots in intermediate levers 33 mounted upon axles 34 fixed upon the standards. The lower ends of the levers 33 are connected by links 35 to cam levers 36 which are fulcrumed at 37 and actuated bycams 38 on short shafts 39 which are driven at half the speed of the shaft 11 by toothed gear pinions 40 and wheels 41. The ends of the tubes26 are provided with rollers 42, Figs. 5 and 6, which run upon lower cams 43 fixed to the bars 1 and 2, and to prevent the driving blades being accidentally raised clear of the shuttle driving noses 44, Fig.9, thereis a fixed upper cam 45 in connection falls with the central frame.

ing blade 24, this latter being made movable so that the front blade can'be raised by hand to allow of the shuttles beinginserted and withdrawn. The front cam 46 is fittedto slide to and from the roller 4-2 in a guide b acket47 and -is heldin its working position by springs 48 mounted upon a des which project through the bracket 47 and at their outer ends are connected by an axle 49 upon which a roller 49 is mounted. lVorking in connection with such roller there is a cam 50 on a vertical shaft 51 and this cam is long enough to allow for the vertical movement of theroller l -as it rises and The shaft 51 is carried'in fixed bearings 52 and at its lower end is h ted with a toothed wheel 53 which gears with a toothed rack 5 L on the power rod 55, these parts being so arranged that when the belt is moved on tothe loose pulley the cam 46 is drawn back clear of the roller 4-2 to allow of the front blade being raised clear of the shuttles 14-. Referring to Figspll and 12 for an understanding of the arrangement and operation of these parts it will be seen that when the fork 55 carried by the power rod 551s actuated to move the drive-belt 56 from theilixed pulley 57 to the loose Julie 57 the rack 54 en ance 1 V a n with and rotates the toothed pinion and rotates the shaft 51 carrying such pinion. In rotatingthe shaft 51, the cam 50 bears on the roller 49 and actuategulwrough the axles 50, the front cam 46, to slide such cam within the bracket e7. The axles 50 re connected to the cam 46, and the transverse axle 49 connecting the axles 50, and supporting the roller 49, is adapted to slide in guides 51 Similarly when the belt 56 is moved from the loose pulley 57 to the fixed pulley 57 the shaft 51 is rotated in the opposite direction, through the gearing 53 and 54, the cam 50 ceases to bear on the roller '49, and the front cam ill-is moved, under the action of the springs l-8,toassume the position shown, holding the front blade in normal position. The shuttle driving mechanism is so arranged and timed that when the shuttles are in their central position as shown in Fig. 5,

they are engaged by both driving blades 24 and 25. As the shuttles are moved toward the front of the loom by'the front driving blade 24;, the back blade 25 is raised by the cam 43 clear of the back noses ofthe shuttles and then comes to rest. The front blade then completes the movement of the shuttle and pulls them through the sheds at which time the cent :11- frame is at or near its highest position and rests until the weftthreads have been beaten up and new sheds formed when the shuttles are pushed into such new sheds by the i return stroke of the front blades. When the shuttles are near their central position again and the central frame is approaching its lowest position both driving blades-are moving in the same direction and at the same speed and continue to so move until the front blade has been raiser clear of the shuttle front noses and the back blade lowered into the shuttle back noses after which the, front blade comes to rest.

fabric-are carried by a separate spool 57, .Figs. 3 and 4; and such spools are arranged in groups and fitted to rotate in slotted hearings on the uprights 58 attached to a lower rail 59' and an upper-rail 60. Each spool carries all-the threads required for each piece of. fabric and these threads pass from the spool over a roller 61, under a roller 62 mounted in the weight .63 and over guide rollers 64- and 65 to a tube 66 at the lower part of the loom. The threads then pass upward to a wire work slay or guide 67 in which they are separated and arranged in rows at right angles to the width ofthe loom; Fromthis slay they. are conducted to and threaded through holes in the shed forming thread guide bars 68 which are thin steel bars having at least one hole for each piece of fabric made at the same time and there arevat least the same number of bars as there are threads in each piece of fabric. At one end of the loom the ends of the bars 68 are connected to springs which tend to hold the barsat one end of their movement, and the other ends of the bars, at the opposite end of the loom, are connected to a jacquard or equivalent pattern mechanism, by which the bars are actuated to form the sheds according to the require-- ments of the fabric and in accordance with any of the usual methods. The threads pass upward from the ba1's68 throughthe reed 69 to the work take-up mechanism hereinafter described. Each flange of the spools 57 isgrooved for a brake cord 70,0116 end of which-is attached to the uprights 58 and the other end to a light frame 71 which is pivotally mounted upon the uprights 58 and provided with springs 72 i by which the cords are held inbraking tension upon the spool flanges. As each piece of work is made .and taken, up the weight 63 on the threads making apiece of fabric is raised into contact with its frame 71 until the tension on the brake cords, 7O is 'sufliciently reduced to I allow of {the weight pulling a length-of thread ofl' the'spool. The weight thendescends and the springs come into action again and liold'the spool stationary. The reed 69, Figs. 7 and 8,vis built up of cross bar "to everyone orino're pieces of'fabside pieces 73 which are connected together at nterv'als by cross bars-74L there being one the cross bars 74'there are helically coiled springs 7 5 the pitch-of which is in accord ance with the gage of the. fabric to be made.

The reed wires 7 6 extend the full width ofthe reed and the ends of such wires are carried by end'pieces between the side pieces,v

73. These wires are laid upon the. cross bars 74 between the (3011s of the springs 7 5 orare threaded through suchcoils, and inside the springs and over the reed 1 wires there are cross w1res 77 which prevent accidental lifting of the wires. By this method of construction the reed wires are accurately and flexibly spaced and are free to move sidewlse'to allow of lrregularltles in the threads passing between such wiresand the wefts in all the fabrics made are simulta-. neously beaten up by the same wires. The

complete reed is fixed between the edges of the plates l3and is supported upon strips on the underside of such plates or upon the bars 1 and 2. I

Each piece of fabric and partially under the lower partof a second roller 80, by which means the fabric 1s held straight at the beat up position. .The

rollers 79 and 80'are-adjustably carried in a bar 81 so that their relative positions can I be varied according to the requirements of the fabric. After the" fabrics leave the rollers 80 they are given 'aquarter -twist and pass upward over a fixed rod 82 and then downward and under the take up roller 83. The surface of this roller is covered'with emery or is otherwise suitably roughened and the roller is positively driven .by a toothed worm wheel 83, Fig. 1, worm S4 and ratchet mechanism 85, the pawl or clawker of which is carried by a lever and actuated by an eccentric 96 on the shaft 11. In connection with the work takeup roller 83 thereis a separate press roller 87 for each piece of fabric and such rollers hold the fabrics in frictional driving contact with the surface of the roller 83. The fabrics pass from the take-up roller 83 to the dividing rod 88 and, all the odd numbered fabrics pass from this rod to bobbins or creels 89 at the front or back of the loom and all the even numbered fabrics to bobbins or creels at the back or front of the loom. Each bobbin or creel 1s separately driven from rollers 90 by flexible bands 91 which may be endless coiled springs and must be capable of maintaining the necessary tension upon the fabrics and of slipping when not actually rotating the bobbins or creels. The rollers 90 are carried in end bearings and are driven by a toothed chain wheel 92 on the axle of the take up roller 83 through an endless chain 93 and chain wheels 94:.

as it is-made passes partially over the upper part of a'roller 7 9 The loom. is also fitted with fast and loose driving pulleys and suitable bell fork gear, andis provided with hand wheels 95 '1; In anarrow ware loom the combination of theshuttles alcentral frame carrying the same, means for guiding the frame vertically,. cranks and" connecting links for actu ating thecentral frame and eccentric toothed gear; driving wheels for driving the central frame, through the said cranks and connectmg links at a varylng speed substantially as herein set forth.

, n v s0 2. In a loom for weaving, a plurality of narrow fabrics inv parallel planes; at right angles to thewidth of, the loom, the combination ofa central frame carrying the shuttles andireeds, meansv for guiding theframe and means for moving thev frame along the guides toward and from the completed fabrics, including eccentricdriving gears arranged to move the frame at its fastest speed as the reeds are brought into operationto beat up the weft threads. i

3. In a loom for weaving a plurality of narrowmfabrics in parallel planes and at rightangles to the width ofqthe loom, the I combination of a supporting frame, aveiy tically movable central frame mounted therein, shuttles supported by the vertically movable frame, reeds also supported in the movable'frame, drivebars for IQClPIOCittlIlg the shuttles back and forth through the shed, lei vers supported in the vertically movable frame for operating the driving bars and driving levers on the stationary frame having sliding connection with the levers that operate the driving bars, arranged to cause the most rapid movement of the shuttles as the central frame is raised and just before the reeds come to position to beat up the I weft threads. 1

4. In a narrow ware loom the combination of the central frame, means for guiding and actuating the same, shuttles carried by the frame, driving blades for'positively traversing the shuttles, end cams for controlling the vertical position and movement of the driving blades, arms fixed to the said blades, bow levers to which the blade arms are jointed, rocking shafts carrying the bow levers, cams for driving the shuttle blades and levers, links and slotted connections between the cams and the rocking shafts substantially asherein set forth.

5. In a narrow ware loom the combmation of the central frame, means for guiding and actuating the same, the shuttles'carried by the central frame, the shuttle driving blades, means for positively moving the driving blades to and from the center of the loom, means for periodically and alternately moving the blades vertically relatively" to the central frame'torcauseione of them to disengage the shuttles while :the

other completes the driving movement,- a "reed frame carried by the'centralframe, and she'd forming thread guideibars substantially as herein set forth.

6. Irina loom for simultaneously weaving a plurality of narrow fabrics, the combination of a central frame-carrylng the shuttles and reeds, means for guiding; and actuating the same to cause the reeds to beat up the efts, reciprocating shuttle-driving blades for causing the traverse of the shuttles, one driving blade having engagement :with the shuttles at the front and the other at the rear,uneans for giving to each blade a positivemovement to actuate the shuttles through approxi- -mately half their traverse, and means for positively disengaging oneblade from the shuttles and arresting ltS movement after it has caused approximately one-half the travelse of the shuttles andat. the samev time causing theother blade to engage with the shuttles and complete their traverse,.andrfor alternately repeatingthese operations.

7. In a narrow ware loom, the combination of a central movable frame,.means for guiding and actuating the same, shuttlessupported in'the movable frame, driving blades liavingseparable engagement with the shuttles, one :at thefront and the other at the rear, fixed cams for guiding therear driving blade to cause it to disengage. from the shuttles as they reach approximately their mid position when moving in one direction and 1 to: engage with the shuttles when reaching approximately the same position when: they wmoveiinwthe oppositevdirection, cams acting xon'ithe ffront driving: blade for causing it to haveesimilar engagement with and separa tion; from the "shuttles,the cams for the front driving blade bar ing movable parts and FIIIBZEIIS for *movingsuch parts of the said cams and carrying them out of: action when the loomris stoppedto permit the removal 1 of. theshuttles.

8. In a. narrow ware loom the combination 9. In a narrow ware loom the combination oftlien central frame, the p arts carried by it and movinglvertically withit, the thread guide bars, cranks and connections for driving the central frame, eccentric toothed gear wheels. carryingthe cranks, eccentric toothed gear wheels driving the crank carrying wheels, cams fori'actuatingthe driving blades wandtoothed gear wheels driving the said cams substantiallyaszherein set forth.

"ARTHUR EDWARD STROUD. \Vitnesses WILLIAM POTTER, c-Enrc .PO'I'IER. 

